Download Divx
If some part of AVI cannot be identified, you need to download a free DivX first: http://www.divx.com/ and then register.

Download DirectX 8
If you haven’t installed DirextX8 in Win 98/2000, you also need to download DirectX8 first.

Download Media player9
Get fast and flexible playback with the best audio and video quality for Windows and the Web.

Download Realone
The free version of RealOne Player lets you play the latest media formats.